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# After observing thirty-year-old albatrosses, biologists determined tha

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Manager
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After observing thirty-year-old albatrosses, biologists determined tha  [#permalink]

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08 Feb 2018, 11:44
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55% (hard)

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67% (02:24) correct 33% (02:28) wrong based on 591 sessions

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After observing thirty-year-old albatrosses, biologists determined that migration distance in mature albatrosses is directly tied to the lifespan of other fledglings in their brood. Albatrosses that hatched alone or whose fellow fledglings did not survive after their first molting were observed to follow shorter migration paths after thirty years than those that had been accompanied by one or more other fledglings.

If the biologists' determination is accurate, it follows that

A. a few albatrosses who molted before maturity are capable of migrating further after thirty years as a result

B. the migration distance of thirty-year-old albatrosses is connected to the migration distance of other fledglings

C. it is the survival of other fledglings rather than just the birth of those fledglings that more directly affects the migration distance of albatrosses after thirty years

D. albatrosses that migrated long distances after their first molting are more likely to migrate long distances after thirty years as well

E. the lifespan of other fledglings is more important to albatrosses after their first molting than it is after thirty years
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Re: After observing thirty-year-old albatrosses, biologists determined tha  [#permalink]

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08 Feb 2018, 21:19
2
took me 4 min to reach the answer ....it seems to me as 700 level question.
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Joined: 16 Jul 2013
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Re: After observing thirty-year-old albatrosses, biologists determined tha  [#permalink]

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10 Feb 2018, 09:00
2
Was between C and E.

I chose C

E goes too far in saying that the lifespan of other fledglings is more important to albatrosses after their first molting than it is after thirty years.

We cannot infer that the lifespan was important or not. It was just directly related to the migration distance of albatrosses after thirty years.

Maybe the bird doesn't want to migrate and wants to relax

I hope its clear

Thank you
Arunabh saxena
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Re: After observing thirty-year-old albatrosses, biologists determined tha  [#permalink]

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10 Feb 2018, 09:54
1
I select option C. I followed option elimination only to arrive at my choice. A can't be inferred from the argument as nothing was mentioned about molding before or after maturity. Choice B seemed close however it is confusing as it relates migrations distance of albatrosses to the migration distance of fledlings but the finding was about fellow fledlings. Option D & E are irrelevant. So it is C for me.

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Re: After observing thirty-year-old albatrosses, biologists determined tha  [#permalink]

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19 Apr 2018, 18:30
souvik101990 : Can you use this question, as question of the day. its a hard level question and official too. thanks!
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Re: After observing thirty-year-old albatrosses, biologists determined tha  [#permalink]

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06 May 2018, 06:37
Can an expert please post the OE of this question pls. Thanks

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Manager
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Re: After observing thirty-year-old albatrosses, biologists determined tha  [#permalink]

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23 Apr 2019, 17:59
aaba wrote:
After observing thirty-year-old albatrosses, biologists determined that migration distance in mature albatrosses is directly tied to the lifespan of other fledglings in their brood. Albatrosses that hatched alone or whose fellow fledglings did not survive after their first molting were observed to follow shorter migration paths after thirty years than those that had been accompanied by one or more other fledglings.

If the biologists' determination is accurate, it follows that

A a few albatrosses who molted before maturity are capable of migrating further after thirty years as a result

B the migration distance of thirty-year-old albatrosses is connected to the migration distance of other fledglings

C it is the survival of other fledglings rather than just the birth of those fledglings that more directly affects the migration distance of albatrosses after thirty years

D albatrosses that migrated long distances after their first molting are more likely to migrate long distances after thirty years as well

E the lifespan of other fledglings is more important to albatrosses after their first molting than it is after thirty years

The last sentence says " Albatrosses that hatched alone or whose fellow fledglings did not survive after their first molting were observed to follow shorter migration paths after thirty years than those that had been accompanied by one or more other fledglings.".

Option C echoes the same...and hence it's the answer.

Nothing has been mentioned about option E.
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Re: After observing thirty-year-old albatrosses, biologists determined tha  [#permalink]

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19 May 2019, 06:23
1
This question has similar framework to another official question: https://gmatclub.com/forum/researchers- ... 81016.html
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Re: After observing thirty-year-old albatrosses, biologists determined tha  [#permalink]

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27 Nov 2019, 05:03
how are we able to infer that survival rather than birth affects migration distance "more directly"?

Thanks!:)
Re: After observing thirty-year-old albatrosses, biologists determined tha   [#permalink] 27 Nov 2019, 05:03
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